Such and similar motors were used in most Grundig tape recorders. They are quite sturdy and drive pretty much
everything, which should turn afterwards somehow. In order to simultaneously serve as a power transformer, the
motors have additional secondary windings at which the corresponding output voltages are available for supplying the
amplifier part.
Here again a look at the power stage of the TK 147. To the right in the picture is the large heat sink for the final stage
transistors. The rectifier is located to the left of the circuit board.
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The preamplifier board of the tape recorder. The switch for recording and playback is clearly visible.
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